Messages in this thread | | | Date | Thu, 12 Aug 1999 16:45:23 +0200 | From | Jan Kasprzak <> | Subject | Re: 2.2.11: Complicated memory leak... |
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Frank Horowitz wrote: : >okiedokey, here goes.. : : OK, thanks for that primer... : : Have got /proc/memleak up and running and am seeing something like : 335000 calls to rtl8139.c:1229 (which is a call to dev_alloc_skb()) : on the way to filling up memory. : I have a similar memory leak on my machine (tried 2.2.11 and 2.2.11-ac3, but w/ 2.2.10-pre2 it is OK). The shift+scrolllock reports around 200000 network buffers in use and >400000 network buffer allocations, and it is <5 minutes after system boot. This probably means it fails to return every second skb.
This machine runs autofs, nfs client and user-space nfs server. Modules and kmod active, but only binfmt_aout and autofs was loaded at the time leak occured. Gcc 2.7.2.3 (RH5.2). Hardware is single PPro/200, AHA2940 with one SCSI disk, EEpro 100. Kernel config and dmesg output are attached, more info available on request.
-Yenya
# grep =[ym] /usr/src/linux/.config CONFIG_EXPERIMENTAL=y CONFIG_M686=y CONFIG_X86_WP_WORKS_OK=y CONFIG_X86_INVLPG=y CONFIG_X86_BSWAP=y CONFIG_X86_POPAD_OK=y CONFIG_X86_TSC=y CONFIG_X86_GOOD_APIC=y CONFIG_1GB=y CONFIG_MTRR=y CONFIG_MODULES=y CONFIG_KMOD=y CONFIG_NET=y CONFIG_PCI=y CONFIG_PCI_GOANY=y CONFIG_PCI_BIOS=y CONFIG_PCI_DIRECT=y CONFIG_PCI_QUIRKS=y CONFIG_PCI_OPTIMIZE=y CONFIG_PCI_OLD_PROC=y CONFIG_SYSVIPC=y CONFIG_SYSCTL=y CONFIG_BINFMT_AOUT=m CONFIG_BINFMT_ELF=y CONFIG_BINFMT_MISC=m CONFIG_PARPORT=m CONFIG_PARPORT_PC=m CONFIG_BLK_DEV_FD=m CONFIG_BLK_DEV_LOOP=m CONFIG_BLK_DEV_RAM=m CONFIG_PARIDE_PARPORT=m CONFIG_PACKET=y CONFIG_UNIX=y CONFIG_INET=y CONFIG_IP_ALIAS=y CONFIG_SKB_LARGE=y CONFIG_SCSI=y CONFIG_BLK_DEV_SD=y CONFIG_CHR_DEV_ST=m CONFIG_BLK_DEV_SR=m CONFIG_CHR_DEV_SG=m CONFIG_SCSI_MULTI_LUN=y CONFIG_SCSI_CONSTANTS=y CONFIG_SCSI_AIC7XXX=y CONFIG_AIC7XXX_TCQ_ON_BY_DEFAULT=y CONFIG_SCSI_NCR53C8XX=y CONFIG_NETDEVICES=y CONFIG_NET_ETHERNET=y CONFIG_NET_EISA=y CONFIG_EEXPRESS_PRO100=y CONFIG_VT=y CONFIG_VT_CONSOLE=y CONFIG_SERIAL=y CONFIG_SERIAL_CONSOLE=y CONFIG_UNIX98_PTYS=y CONFIG_PRINTER=m CONFIG_PRINTER_READBACK=y CONFIG_WATCHDOG=y CONFIG_SOFT_WATCHDOG=m CONFIG_NVRAM=m CONFIG_RTC=y CONFIG_AUTOFS_FS=m CONFIG_PROC_FS=y CONFIG_DEVPTS_FS=y CONFIG_EXT2_FS=y CONFIG_NFS_FS=y CONFIG_NFSD=m CONFIG_SUNRPC=y CONFIG_LOCKD=y CONFIG_VGA_CONSOLE=y
# dmesg Linux version 2.2.11-ac3 (root@tux.fi.muni.cz) (gcc version 2.7.2.3) #4 Thu Aug 12 16:03:15 CEST 1999 Detected 199435136 Hz processor. Console: mono EGA+ 80x25 Calibrating delay loop... 199.07 BogoMIPS Memory: 95784k/98304k available (872k kernel code, 416k reserved, 1180k data, 52k init) CPU: Intel Pentium Pro stepping 07 Checking 386/387 coupling... OK, FPU using exception 16 error reporting. Checking 'hlt' instruction... OK. POSIX conformance testing by UNIFIX mtrr: v1.35 (19990512) Richard Gooch (rgooch@atnf.csiro.au) PCI: PCI BIOS revision 2.10 entry at 0xfd751 PCI: Using configuration type 1 PCI: Probing PCI hardware PCI: 00:00 [8086/1237]: Passive release enable (00) Linux NET4.0 for Linux 2.2 Based upon Swansea University Computer Society NET3.039 NET4: Unix domain sockets 1.0 for Linux NET4.0. NET4: Linux TCP/IP 1.0 for NET4.0 IP Protocols: ICMP, UDP, TCP Starting kswapd v 1.5 Serial driver version 4.27 with no serial options enabled ttyS00 at 0x03f8 (irq = 4) is a 16550A ttyS01 at 0x02f8 (irq = 3) is a 16550A ttyS02 at 0x03e8 (irq = 4) is a 16550A pty: 256 Unix98 ptys configured Real Time Clock Driver v1.09 (scsi0) <Adaptec AHA-294X Ultra SCSI host adapter> found at PCI 11/0 (scsi0) Wide Channel, SCSI ID=7, 16/255 SCBs (scsi0) Warning - detected auto-termination (scsi0) Please verify driver detected settings are correct. (scsi0) If not, then please properly set the device termination (scsi0) in the Adaptec SCSI BIOS by hitting CTRL-A when prompted (scsi0) during machine bootup. (scsi0) Cables present (Int-50 NO, Int-68 YES, Ext-68 NO) (scsi0) Downloading sequencer code... 413 instructions downloaded scsi0 : Adaptec AHA274x/284x/294x (EISA/VLB/PCI-Fast SCSI) 5.1.19/3.2.4 scsi : 1 host. (scsi0:0:0:0) Synchronous at 40.0 Mbyte/sec, offset 8. Vendor: IBM Model: DORS-32160W Rev: WA0A Type: Direct-Access ANSI SCSI revision: 02 Detected scsi disk sda at scsi0, channel 0, id 0, lun 0 scsi : detected 1 SCSI disk total. SCSI device sda: hdwr sector= 512 bytes. Sectors= 4226725 [2063 MB] [2.1 GB] eth0: Intel EtherExpress Pro 10/100 at 0xff80, 00:90:27:24:2A:9F, IRQ 10. Board assembly 701738-003, Physical connectors present: RJ45 Primary interface chip i82555 PHY #1. General self-test: passed. Serial sub-system self-test: passed. Internal registers self-test: passed. ROM checksum self-test: passed (0x24c9f043). Receiver lock-up workaround activated. Partition check: sda: sda1 sda2 sda3 VFS: Mounted root (ext2 filesystem) readonly. Freeing unused kernel memory: 52k freed
-- \ Jan "Yenya" Kasprzak <kas at fi.muni.cz> http://www.fi.muni.cz/~kas/ \\ PGP: finger kas at aisa.fi.muni.cz 0D99A7FB206605D7 8B35FCDE05B18A5E // \\\ Czech Linux Homepage: http://www.linux.cz/ /// | The case with NT is the most spectacular. Seems, they have at least two | | independant teams. One introduces bugs, another invents workarounds. | | Silly bugs are followed by ugly workarounds. 8) --Alexey Kuznetsov |
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